Improved machine foe beidiig tibes



JACOB-Nevins, or` HsnensvILLn, nnss viselNIA.

i Leim-s Paraninfo. 75,781, ma Marel; 24,-1s6`s.-

IMPROVED MACHINE FOR BENDING TIRES.

dige tlgrmile' rentner it. in this ttrrt jatmt mit mating mit ni' tigesans.

lfro LL WHoM im' MAY conocen:

Be-itkiiown 'that I, JACOB NAYLQR, of Hedgesville,' in the countyof-erkeley, and State of West Virginie,

have invented anew and improved Tire-Bender; and yI do herebyv declarethat the following is e full, clear, and vfe'xnct description thereof,referencebeing-had to the accompanying Adrawings,making a part ofV thisspecification,

injwhichy Fignre 1 is an elevation of `the improved device.

Figure 2 is a top view of thedevice. 1 i

Figure 3 is a vertical section of the device, showing the hand-leverapplied to the last end of a. tire that is b eing bent. .Y i l l' Figure4, issn-end view offthefdevicc.

Similar letters of reference indicete cor lesp'onding parts in theseveral gures.

This invention-relates to's nen' and improvedv machine which is adaptedfor use in the operation of bending iron for making tires for wheels l A[The nature of my iuvention'conslste in the employment of a flangedsegmentslblocl: or former, which provided with n horizontal transversebridge7 arranged over it, near one end, which bridge is sonpplied thatit can be adjusted and set for'dilerent diameters and thicknesses ot'tires, as will be hereinafter described.

It also consists in the use, in conjunction with :t segmentelformer andholding-down bridge, of n handlever, which is provided ivith loops onone endfor receiving a portion of a tire, and affording alevemge :andameans ofiholding the tire while completing `the operation of bonding, aswill be hereinafter" described.

To enable others skilled in the art to under-tend my invention', I willdescribe its'constructionand operation.

In the accompanying drawings, A represents arsolid metal block orformer', the upper surface a of whicb'is the are ofa. circle,`1vhich isof less diameter then theismsllest `tire required to be bent upon it, for reasons which will behereinafter explained. This b loclt or former Ais provided with Aflanges b on` the-sides of its convex vface a, whichserve as-'guides andnbutmentsi'or a tireduring the operation of bendingit, so as to prevent the .tire frombeing bent 1,v hlelying 'obliquelyupontheforin'eln Theiiia'nges b will indicdte tothe eye ofthe opere`ttor when a tire is in proper position upon.v theformer to be bent. Ator near one end ofr the block A'iss bridge-bar, B,whichi'islcylindricafl, and constructed with standards c c upon litsends.- f These standards, ivith "their bar Iiiere secured rmly to theblock A, bymjeansjof horizontal transverse bolt, d, which passes throughV*oblong slots made through the standards. .The oblongslots dre madethrough the standards, nsstnted, for the purpose of zillovfing-thebar tobe adjusted and Vset at onyrequi1ed distance from the'surface d oftheiformei,

A; This adjustmeutican be effected by loosening the demping-nut on theend of bolt d. lIfhe same result may` be obtained by makingv4 the holethrough the former, A, oblong; or by making s number of holes throughthe standards c c, one above tho other, for receiving the holt d. Thehar should he parallel to the surface ofthe former-block, whentrensversely, and its distance from said surface will depend upon thediameter of the tire required to be bent uponv the block. I

The machine thus described should be secured {irmlyjtofapostor otherestablished object, at a proper height toallow the tire to'wo'rkbeneathit during the operation of'bending; and when thus arranged andsus tained it is ready for use. i

The operation of bending is performed by introducing one endof theilattire-bar between lthefece a of' the block A and the bar Bj'as shownin I'igs. 1 and 3. The operator then uses the tire-bar aseleverforbending it,` and as cach bend is given, the bnr is slipped. alongfovcrthe surface of'theformer-block. v When the straight portieri of theVtire-bar becomes so short as to fail to serve as a lever, I employ s.lever'7 C, consisting of a long bar, having loopsgg applied to it nearone end, s o as to receive the end of the tirefbar, as shown 4in iig.3..

With this lever C the operationv ot bending the tire-bur cnn'becompleted. v

By reference to iig. 3 it will be seen thatv the bending of' the metal`is done upon the front portion oi" the surface a ofthe former-block, andrests upon that portion ci the block Whicb-is-benesth the bor B.4ThisbarB is the holding-down bar,.for` resisting the upward tendency ofthe ti vmodo adjustable, so as to adopt the'machinefor bending tires ofdi'crent diameters. l It should be understood r e during the operationofbending it, and itis A tbatthc tire is not bent so v`as to conform tothe shape or arc of the surface a, for in tbis case all tires bent uponone block would be of the same diameter. 'lhe block serves as the anvilor object to bend the tires upon, but. the exact curves to be given tothe tires is'determined by the operator. y

I If desirable, an adjustable stop may be applied to the frontend of theblock, for enabling an unpractiscd hand to work with facility at themachine; but, with very little practice, such a stop will not berequired. When such a stop is employed it is setfor a givenradiue oftire, and the operator brings tbe tire downrupon it at every bendingmotion.

With a machine constructed as I have above described, tires can be bentwith great facility, and with suicient exaetness to answer all practicalpurposes, and the work can be performed witboutheating the tire-rods.

I do not claina former and a holding-down device broadly, as shown inthe patents granted to William HindF, March 7, 1833, A. Whiteomb, August21, 1839, and to J. Klepper, July 30, 1861; but

What I. do claim as my invention, and desire to secure by LettersPatent, is-

A former, A, provided withv flanges 6 b and adjustable stirrups forholding tbe bar B, all constructed,

arranged, and combined as described.

JACOB NAYLOR.

Wituessesx JEREMIAH GWIN, GEORGE F. KREGTON;

